13202120232 has 128 divisors (see below), whose sum is σ = 42033945600. Its totient is φ = 3761014464.

The previous prime is 13202120231. The next prime is 13202120237. The reversal of 13202120232 is 23202120231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13202120231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512083 + ... + 537245.

It is an arithmetic number, because the mean of its divisors is an integer number (328390200).

Almost surely, 2^13202120232 is an apocalyptic number.

13202120232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13202120232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21016972800).

13202120232 is an abundant number, since it is smaller than the sum of its proper divisors (28831825368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13202120232 is a wasteful number, since it uses less digits than its factorization.

13202120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25532 (or 25522 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13202120232 its reverse (23202120231), we get a palindrome (36404240463).

Subtracting 13202120232 from its reverse (23202120231), we obtain a palindrome (9999999999).

The spelling of 13202120232 in words is "thirteen billion, two hundred two million, one hundred twenty thousand, two hundred thirty-two".